Guardrail



FIG. 1 is a perspective first side and bottom view of the guardrail showing the present design;

FIG. 2 is a perspective second side and top view of the design of FIG. 1;

FIG. 3 is a first side view of the design of FIG. 1;

FIG. 4 is a top view of the design of FIG. 1;

FIG. 5 is a bottom view of the design of FIG. 1;

FIG. 6 is a second side view of the design of FIG. 1;

FIG. 7 is a first end view of the design of FIG. 1;

FIG. 8 is a second end view of the design of FIG. 1; and,

FIG. 9 is a top and second side view of the guardrail showing its operating environment in phantom which is for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a guardrail, as shown. 